Dermoscopy of Inflammatory Linear Verrucous Epidermal Nevus: Brown and Red Glomerular Structures Over a White Background as an Identifying Feature

Jeffrey Dickman, Michael Noparstak, Rajiv Nathoo

Abstract

Inflammatory linear verrucous epidermal nevus (ILVEN) is an uncommon variant of keratinocytic epidermal nevus that typically presents as linear erythematous and verrucous papules which often coalesce into plaques. ILVEN is characteristically intensely pruritic and is most commonly found unilaterally on an extremity, the trunk, or buttock in a Blaschkoid pattern. Lesions may be present as early as birth most commonly developing in early childhood before the age of five years old and persisting for months to years. Females are more often affected. We present the case of an adult patient who presented to our clinic for evaluation of her long-standing, treatment-resistant ILVEN. Dermoscopy was used to aid in the diagnosis and exhibited alternating red and brown glomerular-type structures over a white background. We propose that these findings may be added to other previously documented dermoscopic characteristics of ILVEN, as they correspond to known histopathological features of the dermatosis and may aid in non-invasive diagnosis.